The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Is there a difference in 2004 and 2005 lq9 engines?

**mongocanfly** · 06-15-2015, 09:49 PM

My 02 lq9 had electric fans...not sure about the other years..I'm told there should be a casting date on the heads..or a wta sticker on the back drivers side head,, those numbers can be run by a gm tech to tell you all about the engine but I've not looked at mine.also told the only changes made were longer head bolts.

06-15-2015, 09:49 PM	#2
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,701	Re: Is there a difference in 2004 and 2005 lq9 engines? My 02 lq9 had electric fans...not sure about the other years..I'm told there should be a casting date on the heads..or a wta sticker on the back drivers side head,, those numbers can be run by a gm tech to tell you all about the engine but I've not looked at mine.also told the only changes made were longer head bolts. Last edited by mongocanfly; 06-15-2015 at 10:07 PM.